JP2784140B2 - Knitting machine dust collector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting apparatus for a knitting machine for collecting cotton dust generated by the knitting machine.

[0002]

2. Description of the Related Art For example, in a circular knitting machine, a number of yarn feeders are arranged around a vertical axis, and a knitting section for knitting knitting yarns supplied from these yarn feeders is formed around a vertical axis. Is arranged below the yarn feeder, and a knitting yarn is supplied to the knitting device from a yarn winding of a cheese, a bobbin or the like via a yarn feeder or the like to knit a knitted fabric. I have.

[0003]

By the way, the yarn feeding device and the knitting device generate the cotton dust of the knitting yarn, but the conventional circular knitting machine does not have any means for collecting such cotton dust. Instead, it just scattered. However, the amount of dust generated in the yarn feeder and knitting device is large, and if this dust is scattered, it has a considerable effect on the working environment,
It is not preferable in terms of worker hygiene. Further, there is a problem that the scattered cotton dust adheres to the knitting yarn before knitting, thereby promoting the occurrence of yarn breakage, or mixing with the knitted fabric to cause a deterioration in quality.

Also, cotton dust adheres to the knitting part of the knitting device, and the dust acts as an operational resistance of the knitting device, impeding the smooth operation of the knitting device. No means for removing such cotton dust was provided. Therefore, an object of the present invention is to provide a dust collecting device of a knitting machine that collects and removes cotton dust generated in a yarn feeding device and a knitting device of the knitting machine.

[0005]

Means for Solving the Problems In order to achieve the above object, the present invention has taken the following technical means. That is,
The present invention relates to a dust collecting device provided in a knitting machine for knitting a knitted fabric by supplying a knitting yarn from a yarn feeder to a knitting device, wherein the cotton dust is collected around the yarn feeder and the knitting device. A net, airflow generating means for generating an airflow for attaching the cotton dust generated in the yarn feeding device and the knitting device to the dust collection net, and removing dust attached to the dust collection net by wind force. And collecting means for collecting the data.

[0006] Further, a knitting device having a number of yarn feeders arranged around the longitudinal axis and having a knitting portion around the longitudinal axis for knitting the knitting yarn supplied from each of the yarn feeders is provided. In the knitting machine arranged below the
The dust collecting device of the present invention includes a cotton dust collecting net surrounding the plurality of yarn feeding devices and the knitting device from the side, and dust generated by the yarn feeding device on an inner peripheral surface of the cotton dust collecting net. A first airflow generating means for generating an airflow to be attached, a second airflow generating means for generating an airflow for blowing off the dust adhering to the knitting part, and a cotton dust blown off by the second airflow generating means for the cotton. A third airflow generating means for generating an airflow to be attached to the inner peripheral surface of the dust collecting net, and a collecting means for removing and collecting the dust adhering to the inner peripheral surface of the dust collecting net by wind power. It is characterized by:

In the above-mentioned dust collecting apparatus for a knitting machine, it is possible to provide a net driving means for driving the cotton dust collecting net to rotate around the vertical axis, and the collecting means is provided at at least one position in the circumferential direction of the knitting machine. Wind power removing means for blowing gas from the outside of the dust collecting net to blow off the cotton dust attached to the inner peripheral surface of the dust collecting net, and sucking the cotton dust blown off by the gas ejected from the wind power removing means And a dust-absorbing means arranged inside the cotton dust collecting net to make it possible.

[0008] The first airflow generating means includes at least one fan for generating an airflow for adhering cotton dust generated in one yarn feeder in a circumferential direction of the knitting machine to an inner peripheral surface of the cotton dust collection net. Fan driving means for rotating the fan about a vertical axis so as to cause the dust generated by the yarn feeder to adhere to the inner peripheral surface of the dust collecting net over the entire circumference by the fan. It can be.

The second airflow generating means includes a revolving body driven to rotate about a longitudinal axis as a revolving axis and a revolving body rotatable about a rotating axis located above a knitting portion of the knitting apparatus. And a rotating body provided in the rotating body,
An ejection port for ejecting gas toward the knitting portion to blow off cotton dust attached to the knitting portion may be provided eccentrically with the rotation axis.

The third airflow generating means includes an annular first air ejection pipe provided at an upper portion of the knitting device, and an annular second air ejection pipe provided at an outer peripheral portion of the knitting device. The first air ejection pipe is formed with an ejection hole for ejecting a gas to blow cotton dust above the knitting device toward a dust collection net, and the second air ejection pipe is formed in the first air ejection pipe. An ejection hole for ejecting gas to blow off the cotton dust on the side of the knitting device toward the dust collection net may be formed.

[0011]

In the dust collecting apparatus according to the first aspect, the cotton dust generated in the yarn feeding device and the knitting device of the knitting machine is attached to the cotton dust collecting net by the air flow generated by the air flow generating means.
Such attached cotton dust is removed by the wind force by the collecting means and collected. Therefore, scattering of cotton dust is prevented and the working environment is hardly degraded, and the occurrence of thread breakage due to the adhesion of cotton dust to the knitting yarn is reduced, and the mixing of cotton dust into the knitted fabric is also reduced. Is done.

In the dust collecting device according to the second aspect, the cotton dust generated by the plurality of yarn feeders arranged around the longitudinal axis of the knitting machine is generated by the airflow generated by the first airflow generating means.
Attached to the inner peripheral surface of the dust collection net. Further, the cotton dust adhering to the knitting portion of the knitting device is blown off by the airflow generated by the second airflow generating means and floats near the knitting portion. Such suspended cotton dust,
The airflow generated by the third airflow generation means adheres to the inner peripheral surface of the dust collection net.

[0013] The dust adhering to the inner peripheral surface of the dust collection net in this way is removed and collected by wind power by the collecting means. Furthermore, in the dust collecting apparatus according to claim 3, the dust collecting net is rotated around the vertical axis by the net driving means, so that at least one place in the circumferential direction of the knitting machine is used as the collecting means. If it is configured to remove the dust adhering to the inner peripheral surface by wind power, the dust is sequentially removed over the entire circumference of the dust collection net.

[0014] In the first airflow generating means according to the present invention, the dust generated in the yarn feeder at one location in the circumferential direction of the knitting machine due to the airflow generated by the fan is formed on the inner circumference of the cotton collection net. Attached to the surface. The fan is driven to rotate about the vertical axis by the fan driving means, and thus, the cotton dust generated in each of the numerous yarn feeders is attached to the cotton collection net.

[0015] In the second airflow generating means according to the fifth aspect, the rotation of the revolving body about the longitudinal axis and the rotation of the rotating body about the rotational axis cause the ejection port to perform satellite motion about the longitudinal axis. Do. Therefore, cotton dust is blown off over the entire circumference of the knitting portion and in a wide range in the radial direction including the knitting portion. In the third airflow generating means according to the sixth aspect, the dust above the knitting device is blown outward by a gas ejected from the first air ejecting pipe toward the dust collection net, and the second air is ejected. The gas discharged from the discharge pipe blows the cotton dust on the side of the knitting device outwardly toward the cotton collection net.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 10 denotes a knitting machine for knitting knitted fabric which is conventionally known.
A number of yarn feeders 13 for positively feeding yarns are arranged around the longitudinal axis O of the circular knitting machine 10, and below the yarn feeders 13, the knitting yarns respectively supplied from the many yarn feeders 13 are provided. A knitting device 15 having a knitting unit 14 for knitting 12 around the longitudinal axis O is arranged. The knitting device 15 includes an upper hook 16, a cam holder 17 for the upper hook, and a lower hook 1.
8, a lower hook cam holder 19 and the like. A winding device 20 that rotates and stops around the vertical axis in synchronization with the operation of the knitting device 15 is provided below the machine frame 11, that is, below the knitting device 15. In addition, 21 is a main shaft of the circular knitting machine 10.

The operation of the circular knitting machine 10 will be described. A knitting yarn 12 from a cheese, bobbin, or the like is positively sent out by a yarn feeder 13 and supplied to a knitting device 15. And knitted circular knitted fabric 2
2 are knitted and sent out sequentially in a downward manner,
The circular knitted fabric 22 sent out from the knitting device 15 is wound into a roll by the winding device 20.

The dust collecting apparatus 30 according to the embodiment of the present invention is mounted on the circular knitting machine 10 and has a large number of yarn feeders 1.
3 and a dust collection net 31 surrounding the knitting device 15 from the side, and an airflow generating an airflow that causes the dust generated by the yarn feeder 13 and the knitting device 15 to adhere to the inner peripheral surface of the dust collection net 31. The apparatus is provided with a means 32 and a collecting means 33 for removing and collecting the dust attached to the inner peripheral surface of the dust collecting net 31 by wind power.

First, the dust collecting net 31 of the present embodiment will be described. As shown in FIGS. 1 and 2, the dust collecting net 31 includes a dust attaching portion 34 that allows gas to permeate but does not allow cotton dust to permeate.
Are located outside the yarn feeder 13 and outside the knitting device 15. More specifically, a ring-shaped upper frame 3
5 and a lower frame 36 are connected and fixed by a long connecting bar 37, and a net 3 is provided between the upper frame 35 and the lower frame 36.
The net 38 is used to attach the dust attaching portion 3.
4 are configured. The upper frame 35 is provided with a flange 40 extending outwardly over the entire circumference of the cotton dust collection net 31.

The lower frame 36 of the dust collection net 31 is
The diameter of the collection frame 3 is smaller than that of the upper frame 35.
1 is configured so that the diameter thereof is gradually reduced downward, and has a substantially funnel shape as a whole. In the circular knitting machine 10 illustrated in FIG. 1, the portion of the yarn feeder 13 that generates the cotton dust is located at the knitting device 15 disposed below the yarn feeder 13.
Of cotton dust in the area (mainly knitting part 14)
If the collection net 31 is configured as described above, the dust adhering portion 3 of the collection net 31
4 can be brought as close as possible to the respective dust generating portions, and the dust generated at each generating portion can be more efficiently collected.

The configuration of the dust collection net 31 is not limited to the one in this embodiment, and may be, for example, a cylinder or a square tube. The cotton dust collection net 31 is supported at its upper part by three support rollers 42 rotatable with the radial direction of the collection net 31 as a central axis direction, and its lower part is fixed to the machine frame 11 of the knitting machine 10. Ring rail 4
3 and is rotatable about a vertical axis O. That is, at the outer ends of three support members 44 radially extended and fixed to the machine frame 11, the support rollers 42 that abut against the lower surface of the flange 40 of the upper frame 35 are provided. The lower frame 36 of the collection net 31 is fitted inside. In addition, the support roller 42 is provided with a flange portion 46 that comes into contact with the outer edge of the flange 40 to prevent the dust collection net 31 from falling off the support roller 42. Further, a bearing (not shown) is provided on the annular rail 43 in order to make the rotation of the collection net 31 smooth.

Further, the dust collecting apparatus 10 of this embodiment is provided with a net driving means 47 for driving the cotton dust collecting net 31 to rotate around the vertical axis O. The net driving means 47 includes a driving roller 48 abutting on the upper surface of the flange 40 of the dust collection net 31 and a motor 49 for rotating the driving roller 48. When the driving roller 48 rotates, the driving roller 48 The collection net 31 is rotated about the vertical axis O by frictional resistance between the collection net 31 and the flange 40 of the collection net 31.

In this net driving means 47,
It is preferable that the frictional resistance between the driving roller 48 and the flange 40 be such that the rotation of the collection net 31 can be easily stopped by hand even while the motor 49 is being driven. Also,
It is preferable that the drive roller 48 is disposed above any of the support rollers 42 and the flange 40 is held between the drive roller 48 and the support roller 42. The collection net 31 can be rotated intermittently by controlling the motor 49 by a timer or the like, or can be rotated at a constant angular speed (for example, 720 ° per minute) at a constant speed. Further, the support roller 42 and the drive roller 48 can be made of rubber, metal, or the like, but the drive roller 48 is preferably made of rubber.

Next, the airflow generating means 32 of this embodiment will be described. The airflow generating means 32 is, as shown in FIG.
First airflow generating means 5 for generating an airflow for causing the cotton dust generated in the yarn feeder 13 to adhere to the inner peripheral surface of the cotton collection net 31
1 and a second airflow generation means 52 for generating an airflow for blowing off the dust attached to the knitting portion 14 of the knitting device 15
And a third airflow generating means 53 for generating an airflow for attaching the cotton dust blown off by the second airflow generating means 52 to the inner peripheral surface of the dust collection net 31.

The first airflow generating means 51 is provided to remove the cotton dust generated by the yarn feeder 13 at one location in the circumferential direction.
A fan 55 for generating an airflow to be attached to the inner peripheral surface of
A fan drive means 56 for rotating the fan 55 about the vertical axis so that the cotton 55 generated by the yarn feeder 13 is attached to the cotton net 31 by the fan 55 over the entire circumference. . In the present embodiment, as shown in FIG. 1, two fans 55 are provided on the opposite sides in the radial direction, but may be one or three.
More than one.

The fan 55 is provided at the top of the machine frame 11 of the knitting machine 10 so as to be rotatable around the longitudinal axis O, and is arranged to blow air toward the yarn feeder 13 from above and inside the yarn feeder 13. By operating the fan 55,
An air current flows from the vicinity of the yarn feeder 13 to the inner surface side of the collection net 31, and the cotton dust generated by the yarn feeder 13 is forcibly flown and adhered to the inner surface of the cotton attachment portion 34 of the collection net 31.

The fan drive means 56 is configured to rotate the fan 55 at a constant angular speed by a motor or the like at a constant speed. Therefore, the cotton dust generated in each of the yarn feeders 13 sequentially along the circumferential direction. The fan 55 attaches to the dust attaching portion 34 of the collection net 31. Therefore, even if there are a large number of yarn feeders 13 as in the circular knitting machine 10, the dust generated in each yarn feeder 13 can be reduced by the fan 55 having a small capacity.
Thus, it can be attached to the collection net 31, cost can be reduced, and the configuration is simple, so that maintenance is good.

As shown in detail in FIGS. 3 and 4, the second airflow generating means 52 includes a revolving body 60 which is driven to rotate about a vertical axis O as a revolving axis, and a knitting portion 14 of the knitting device 15. A rotating body 61 provided on the revolving body 60 so as to be rotatable around a rotating axis M located above the rotating body M,
The spinning body 61 is provided with an ejection port 62 for blasting the gas toward the knitting portion 14 to blow off the cotton dust attached to the knitting portion 14 eccentrically with the rotation axis M. The eccentric distance of the ejection port 62 is set to be large enough to blow off the dust over the range including the radial width of the knitting portion 14 by the gas ejected from the ejection port 62 when the rotating body 61 rotates. .

The revolving body 60 is annular and is reciprocally supported on a support 64 fixed to the main shaft 21 of the knitting machine 10. This is achieved by providing a flange 64a on the support base 64 as shown in FIGS.
a is formed by fitting a concave groove 60 a provided on the inner periphery of the revolving body 60. A rack 65 is provided around the lower inner periphery of the revolving body 60.
A driving gear 66 is meshed with the driving gear 66, and the driving gear 66 is configured to be rotationally driven by a motor 67.

Therefore, by driving the motor 67, the revolving body 60 is rotated around the vertical axis O. The revolving body 60 includes a first chamber 71 to which a compressed air pipe 70 for supplying a compressed gas is connected, and a second chamber 72 located radially outside the first chamber 71. The chamber 71 and the second chamber 72 are communicated via a small-diameter communication port 73.

On the other hand, an impeller 75 housed in the second chamber 72 of the revolving body 60 is integrally connected to the rotating body 61, and is rotated by a bearing 76 fixed to the bottom wall of the second chamber 72. It is freely supported. The impeller 76 has a communication port 73
The impeller 76 is configured to be rotated in one direction by an airflow ejected toward the impeller 76. For example, as illustrated in FIG. 4, the impeller 76 is disposed eccentrically with respect to the communication port 73. I have.

The injection port 62 is provided at the center axis of the impeller 76.
An exhaust passage 78 communicating with the exhaust passage 78 is formed. Therefore, when the compressed gas is supplied from the compressed air pipe 70 to the first chamber 71 and the pressure in the first chamber 71 increases, the gas is ejected from the communication port 73 toward the second chamber 72, and the ejected gas causes As the impeller 76 is rotated, the air pressure in the second chamber 72 increases. Then, the gas is ejected from the ejection port 62 through the exhaust passage 78, and the cotton dust adhering to the knitting portion 14 of the knitting device 15 is blown off.

At this time, since the jet port 62 is eccentric with respect to the rotation axis M, the jet port 62 is rotated in one direction by the rotation of the rotating body 61 (the impeller 75 always rotates in one direction). Therefore, cotton dust adhering near the knitting portion 14 can be removed in a relatively wide range. The rotation of the rotating body 61 is performed by using the compressed gas ejected from the ejection port 62 in the supply process, and it is not necessary to separately provide a driving source.

On the other hand, since the rotating body 61 is rotated about the longitudinal axis O by the motor 67 together with the revolving body 60, the dust of the knitting portion 14 is blown off sequentially along the circumferential direction. In the second airflow generating means 52 of the present embodiment, the first chamber 71, the second chamber 72, and the rotating body 61 are respectively provided at two symmetrical positions with respect to the vertical axis O, and the weight balance of the revolving body 60 is adjusted. Although the rotation operation of the revolving body 60 is facilitated by achieving uniformity, the number of these may be one, or three or more may be provided.

Further, in order to prevent the compressed air pipe 70 from being entangled, the revolving body 60 has a predetermined angle (for example, 180 °).
°) Preferably, the direction of rotation is reversed when rotated. In the present embodiment, a detecting means 79 such as a touch sensor is provided at one circumferential position on the outer end of the revolving body 60, and is provided at two circumferential positions of the machine frame 11 of the knitting machine 10 so as to contact the detecting means 79. By providing the projection members 80, 80, the revolving body 60
The motor 67 is rotated in reverse by a detection signal from the detection means 79 every time the motor rotates half a rotation (180 ° rotation).

An annular ejection pipe 69 is provided around the main shaft 21 of the knitting machine 10 above the support 64 to blow off the cotton dust accumulated on the support 64 and the upper surface of the revolving body 60 toward the collection net 31. Preferably, the gas ejected from the ejection pipe 69 generates an airflow that radially flows radially outward from the center side. The third airflow generating means 53 includes:
As shown in FIGS. 1 and 3, an annular first air ejection pipe 81 provided around the main shaft 21 of the knitting machine 10 above the knitting device 15 and an annular first air ejection pipe 81 provided around the outer peripheral portion of the knitting device 15. Second
An air ejection pipe 82 is provided.

The first air ejection pipe 81 has a knitting device 1
A large number of first ejection ports 84 for ejecting gas are formed over the entire circumference in order to blow the cotton dust above 5 toward the cotton dust collection net 31 radially outward. It is preferable that the first ejection port 84 is formed on the lower side so that gas is blown toward the upper hook cam holder 17 of the knitting device 15.

The second air ejection pipe 82 is connected to the knitting device 15.
Is fixed to the outer periphery of the lower hook cam holder 19,
A large number of second ejection ports 84 are formed over the entire circumference in the circumferential direction to eject gas to blow the cotton dust on the side of the knitting device 15 toward the dust collection net 31. The first air ejection pipe 81 and the second air ejection pipe 82 are connected to a compressed gas supply pump (not shown), and are configured to always eject gas during operation of the knitting machine 10.

Accordingly, the dust accumulated on the upper surface of the upper cam holder 17 and the cotton dust blown off from the knitting portion 14 of the knitting device 15 by the second airflow generating means 52 and floating above the knitting portion 14 are formed. Then, the gas ejected from the first air ejection pipe 81 is blown radially outward toward the recovery net 31. Further, the cotton dust floating on the side of the knitting device 15 is blown radially outward toward the collection net 31 by the gas ejected from the second air ejection pipe 82, and the cotton dust on the collection net 31 is removed. Attachment part 34
Adhered to.

Next, the collecting means 33 of this embodiment will be described. The collecting means 33 includes a wind removing means 89 for generating an air current that blows off the dust adhering to the inner peripheral surface of the dust collecting net 31 at one location in the circumferential direction of the circular knitting machine 10, and the wind removing means 89 blows off the dust. A dust suction means 90 for sucking and collecting cotton dust is provided.

The wind removing means 89 is a gas jet pipe 9 for jetting gas from the outer surface side of the dust attaching portion 34 of the collection net 31.
The gas ejection pipe 91 is connected to a dust collection box 93. Further, the dust suction means 90 is provided with a gas ejection pipe 91.
A dust suction pipe 92 for sucking the dust blown off from the dust adhering portion 34 by the wind force of the gas ejected from the dust suction pipe 92. The dust suction pipe 92 is connected to the suction port of the dust collection box 93. .

The gas ejection pipe 91 is disposed at one position in the circumferential direction of the collection net 31 and outside the cotton attachment portion 34 of the collection net 31 along the vertical direction, and faces the dust attachment portion 34 of the collection net 31. A long slit 94 is provided on the side of the dust collecting box 93. By increasing the pressure in the pipe by a pump or the like provided in the dust collecting box 93, the cotton dust attaching portion 3 is removed from the slit 94.
The gas is ejected toward 4. In addition,
Instead of the slit 94, a large number of small holes for ejecting gas may be provided side by side along the pipe axis direction on the side facing the cotton dust attaching portion 34.

The dust suction pipe 92 is arranged inside the dust attachment section 34 and parallel to the gas ejection pipe 91, and a slit 95 is provided on the side of the collection net 31 facing the dust attachment section 34. When the pressure inside the tube is reduced to a negative pressure by a pump or the like provided in the dust collection box 93, the cotton dust blown off by the wind force of the gas ejected from the gas ejection tube 91 is slit 9.
5 and is configured to collect cotton dust in the dust collection box 93. In addition, instead of the slit 95,
A large number of small holes for sucking dust may be arranged in parallel along the pipe axis direction on the side facing the dust attaching portion 34.

According to the collecting means 33, the gas ejection pipe 9
The dust that has adhered to the dust adhering portion 34 is blown off and removed by the wind power of the gas ejected from the first slit 94, and the removed dust is sucked from the slit 95 of the dust suction pipe 92 to collect dust. Collect dust in box 93. On the other hand, the collection net 31 is rotated about the longitudinal axis O, and the dust adhering to the cotton attachment portion 34 is removed and collected by the collection means 33 over the entire circumference of the collection net 31.

The present invention is not limited to the above embodiment, but can be modified as appropriate. For example, the vertical axis (rotational axis) of the cotton dust collection net 31 may not be the same as the vertical axis O of the knitting machine 10, and may be slightly shifted in front, rear, left and right.

[0046]

As described above, the dust collecting device of the knitting machine according to the present invention uses the cotton dust collecting net surrounding the yarn feeding device and the knitting device, and the cotton dust generated by the yarn feeding device and the knitting device. Since it is provided with an airflow generating means for generating an airflow to be attached to the dust collection net, and a collection means for removing and collecting the cotton dust attached to the dust collection net by wind power, it is generated by the yarn feeding device and the knitting device. Dust can be collected without being scattered, thereby preventing the occurrence of thread breakage due to the attachment of the cotton dust to the knitting yarn, and the quality deterioration due to the mixing of cotton dust into the knitted fabric can be prevented. Further, it is possible to prevent the working environment from being deteriorated due to the scattering of cotton dust.

Further, the present invention is provided with the net driving means for driving the cotton dust collection net to rotate around the vertical axis.
A collecting means for removing the dust adhering to the inner peripheral surface of the dust collecting net can be employed at at least one location in the circumferential direction of the knitting machine, and the structure of the entire apparatus can be simplified. Also,
The first airflow generating means includes at least one fan that generates an airflow that causes the dust generated by the yarn feeder at one location in the circumferential direction to adhere to the inner peripheral surface of the dust collection net; It is provided with fan driving means for driving the fan to rotate around the vertical axis in order to cause the dust generated in the device to adhere to the inner peripheral surface of the dust collection net. Cotton dust generated by the yarn feeder can be sequentially attached to the cotton dust collection net.

The second airflow generating means includes a revolving body driven to rotate with the longitudinal axis as the revolving axis, and a revolving body rotatable about a rotating axis located above the knitting portion of the knitting device. Provided with a rotating body provided, and the rotating body is provided with an ejection port for blowing gas toward the knitting portion to blow off the cotton dust attached to the knitting portion, eccentrically with the rotation shaft. In addition, the cotton dust adhering to the knitting portion of the knitting device can be removed by wind power over the entire circumference, and the needle movement in the knitting device can be facilitated.

The third airflow generating means includes an annular first air ejection pipe provided at an upper portion of the knitting device, and an annular second air ejection pipe provided at an outer peripheral portion of the knitting device. The first air ejection pipe is provided with an ejection hole for ejecting gas to blow off the dust above the knitting device toward the dust collection net, and the second air ejection pipe is provided with the knitting device of the knitting device. Since the ejection hole for ejecting gas to blow off the side dust toward the dust collection net is formed, the dust blown off by the second airflow generating means can be attached to the dust collection net. it can.

[Brief description of the drawings]

FIG. 1 is a partially sectional front view showing an entire knitting machine equipped with a dust collecting apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view showing a cotton dust collection net of the dust collector.

FIG. 3 is an enlarged half sectional front view showing the vicinity of a knitting device of the knitting machine.

FIG. 4 is a partially sectional plan view showing, in an enlarged manner, a second airflow generating means of the dust collector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Knitting machine 12 Knitting yarn 13 Thread feeder 14 Knitting part 15 Knitting device 22 Knitted fabric 30 Dust collector of knitting machine 31 Cotton dust collection net 32 Air flow generation means 33 Collection means 47 Net drive means 51 First air flow generation means 52 Second airflow generating means 53 Third airflow generating means 55 Fan 56 Fan driving means 60 Revolving body 61 Rotating body 62 Jet port 81 First air jet pipe 82 Second air jet pipe 83 First jet port 84 Second jet port 89 Wind power Removal means 90 Dust suction means

Claims (6)

(57) [Claims] 1. A dust collector provided in a knitting machine (10) in which a knitting yarn (12) is supplied from a yarn feeder (13) to a knitting device (15) to knit a knitted fabric (22). A cotton dust collecting net (31) surrounding the yarn feeder (13) and the knitting device (15);
3) and an airflow generating means (32) for generating an airflow for adhering the dust generated by the knitting device (15) to the dust collection net (31), and attached to the dust collection net (31). A dust collecting device for a knitting machine, comprising: a collecting means (33) for removing and collecting cotton dust by wind power. 2. A plurality of yarn feeders (13) are arranged around a vertical axis (O), and a knitting part (14) for knitting a knitting yarn (12) supplied from each of these yarn feeders (13). ) Around the longitudinal axis of the knitting machine (1) disposed below the yarn feeder (13).
0), the multiple yarn feeders (13) and the knitting devices (1)
A dust collection net (31) surrounding side 5), and a second airflow generating an air flow for adhering the dust generated by the yarn feeder (13) to the inner peripheral surface of the dust collection net (31). 1
Airflow generating means (51) and the knitting part (14)
A second airflow generating means (52) for generating an airflow for blowing off the dust adhering to the air, and the dust blown off by the second airflow generating means (52) on the inner peripheral surface of the dust collection net (31). Third airflow generating means (5) for generating an airflow to be attached
3) collecting means (33) for removing and collecting the dust adhering to the inner peripheral surface of the dust collecting net (31) by wind power;
And a dust collecting device for a knitting machine. 3. The dust collection net (31) is connected to the vertical axis (O).
A net driving means (47) for driving the rotation of the knitting machine (10) in a circumferential direction of the knitting machine (10);
A wind removing means (89) for blowing gas from outside the dust collecting net (31) in order to blow off the dust adhering to the inner peripheral surface of the dust collecting net (31), and the wind removing means And a dust suction means (90) disposed inside the dust collection net (31) to suck the dust blown off by the gas ejected from (89). The knitting machine dust collector according to claim 2. 4. A knitting machine (1) comprising: a first airflow generating means (51);
0) At least one fan (55) for generating an air flow for causing the dust generated by the yarn feeder (13) at one location in the circumferential direction to adhere to the inner peripheral surface of the dust collection net (31); 55) The fan (55) is driven to rotate about the vertical axis (O) so that the cotton dust generated by the yarn feeder (13) adheres to the inner peripheral surface of the dust collection net (31) over the entire circumference. The dust collecting device for a knitting machine according to claim 2, further comprising a fan driving unit. 5. A revolving body (60) rotatably driven around a vertical axis (O) as a revolving axis.
And a rotating body (61) provided on the revolving body (60) so as to be rotatable around a rotating axis (M) located above the knitting portion (14) of the knitting device (15). A spout (62) for blowing gas toward the knitting part (14) to blow off the cotton dust attached to the knitting part (14) is provided on the rotation body (61). The dust collecting device for a knitting machine according to claim 2, wherein the dust collecting device is provided eccentrically. 6. A third airflow generating means (53) is provided on an annular first air ejection pipe (81) provided on an upper portion of the knitting device (15) and on an outer peripheral portion of the knitting device (15). And a ring-shaped second air ejection pipe (82). The first air ejection pipe (81) is provided with a dust collection net (3) for collecting the dust above the knitting device (15).
A first ejection port (83) for ejecting gas to blow off toward 1) is formed, and the second air ejection pipe (82) is formed.
A second ejection port (84) for ejecting a gas to blow off the cotton dust on the side of the knitting device (15) toward the dust collection net (31). Item 6. A dust collector for a knitting machine according to Item 2, 3, 4, or 5.